Related Experiment Video
Updated: Jul 10, 2026
11:10
Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 27, 2010
A new HLA-B*44 variant, B*4453, identified by haplotype-specific extraction and sequencing-based typing
S Ulrich1, U Posch, W Helmberg
1Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria. silvia.ulrich@klinikum-graz.at
Tissue Antigens
|November 1, 2007
Summary
A new human leukocyte antigen (HLA) B*44 allele, named HLA B*4453, was identified. This novel allele was discovered in an Austrian patient and their two siblings.
Area of Science:
- Immunogenetics
- Molecular biology
- Human leukocyte antigen (HLA) research
Background:
- The human leukocyte antigen (HLA) system plays a critical role in immune response.
- The HLA B locus is highly polymorphic and crucial for tissue compatibility.
- Allelic variations within HLA genes can influence immune system function and disease susceptibility.
Purpose of the Study:
- To report the discovery and characterization of a novel HLA B*44 allele.
- To contribute to the understanding of HLA polymorphism.
- To provide a new reference for HLA typing and research.
Main Methods:
- High-resolution HLA typing techniques were employed.
- DNA sequencing was used for allele identification and characterization.
- Phylogenetic analysis may have been used to compare the novel allele with known alleles.
Main Results:
- A novel HLA B*44 allele, designated HLA B*4453, was identified.
- The allele was found in an Austrian patient and their two sisters, suggesting a familial occurrence.
- Detailed characterization confirmed its unique sequence and classification within the B*44 supertype.
Conclusions:
- The identification of HLA B*4453 expands the known repertoire of HLA B alleles.
- This finding underscores the ongoing need for comprehensive HLA typing and database updates.
- The novel allele may have implications for population genetics and transplantation immunology.
